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20110030311 = 3710126173623
BaseRepresentation
bin10010101110101001…
…101011010111100111
31220220111120101110110
4102232221223113213
5312141131432221
613123255424103
71311226302660
oct225651532747
956814511413
1020110030311
11858a651468
123a92985033
131b86420a27
14d8ab68367
157ca752776
hex4aea6b5e7

20110030311 has 32 divisors (see below), whose sum is σ = 30967630848. Its totient is φ = 11370182400.

The previous prime is 20110030307. The next prime is 20110030327. The reversal of 20110030311 is 11303001102.

It is not a de Polignac number, because 20110030311 - 22 = 20110030307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110030111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5548846 + ... + 5552468.

It is an arithmetic number, because the mean of its divisors is an integer number (967738464).

Almost surely, 220110030311 is an apocalyptic number.

20110030311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20110030311 is a deficient number, since it is larger than the sum of its proper divisors (10857600537).

20110030311 is a wasteful number, since it uses less digits than its factorization.

20110030311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6351.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20110030311 its reverse (11303001102), we get a palindrome (31413031413).

The spelling of 20110030311 in words is "twenty billion, one hundred ten million, thirty thousand, three hundred eleven".

Divisors: 1 3 7 21 101 303 707 2121 2617 3623 7851 10869 18319 25361 54957 76083 264317 365923 792951 1097769 1850219 2561461 5550657 7684383 9481391 28444173 66369737 199109211 957620491 2872861473 6703343437 20110030311